The Empire Strikes Back: Luke Skywalker vs. Darth Vader
Okay, so we made a crack about Star Wars in the intro, but that was about Ewoks, which don't show up until part III (er, part VI). But before that, Empire had one of the greatest face-offs in cinematic history: Luke Skywalker vs. Darth Vader. If you don't know the piece of information that gets revealed in their epic lightsaber duel, then you must be from a pretty remote part of Tatooine. It pains us to say it, but this face-off is the sci-fi champ.